Book Your Test

If you are human, leave this field blank.

Name *

Email *

Phone Number *

Test Name *

Date *

State *

City *

* T & C

You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only

Blood Types and Blood Group Testing

All of us bleed red – but of various types. It is common knowledge that blood can be classified into different blood groups; news scrolls and WhatsApp texts carry urgent requests for a particular type of blood and Facebook’s ‘blood donor’ feature caters to requests based on blood groups. Those of us who are a part of any social network that provides a conduit for blood to flow from person to person, know that the following blood groups (or types) exist: A, B, AB, and O. Also familiar to us, is the positive or negative sign that accompanies these basic blood types, further segregating them into eight groups. On what basis, then, are these divisions organised?

ABO Blood Types

The ABO grouping system is based on the type of antigens that live on the surface of the red blood cells (RBCs). If the word ‘antigen’ rings a rusty bell, we may recollect that these are protein molecules that stimulate an immune response from the white blood cells (WBCs) in the body. These need not necessarily be foreign bodies: our systemgenerates ‘autoantigens’ on its own as well. The type of autoantigens that our RBCs carry determines our blood group in the following manner:

Blood group A has type A antigens (and type B antibodies)

Blood group B has type B antigens (and type A antibodies)

Blood group AB has type A as well as type B antigens (and no antibodies)

Blood group O has no antigens at all (and both types of antibodies)

(Antibodies are also protein molecules launched by the body to counter the effect of antigens.)

Rh Blood Types

A further classification is possible based on the Rh (Rhesus) factor. Named after the Rhesus monkey that was mistakenly thought to have the same antigen, this protein – which is also an antigen – is found on the cell membrane of RBCs. The determination of the various types within the Rh factor itself is a complex science, but as far as blood groups are concerned, the classification is based, quite simply, on their presence or absence. Blood that lacks Rh antigens is Rh-negative, and the other kind is Rh-positive. Accordingly, a plus or a minus sign is attached to the ABO classification, giving rise to these types: A+, A-, B+, B-, AB+, AB-, O+, and O-.

What is the significance of blood typing?

The problem and the answer both lie in the antigens. Since these substances trigger immune responses from the body, it is of utmost importance to ensure compatibility before blood transfusions and donations are made. If, for instance, a person of blood group B receives blood of type A, the recipient’s body will label the A-type antigens as foreign bodies, and resist the transfusion. It is for this reason that group AB can receive blood from any type (since it contains and recognises both types of antigens) but group O can only take from type O. The same rule applies for the highly immunogenic Rh-factor as well. Rh-negative mothers who first had an Rh-positive baby might develop antibodies that may harm an Rh-positive baby during the second pregnancy, leading to severe anaemia. It is not surprising, therefore, that many documents – ranging from university applications to employee ID-cards ask for the blood group to be specified.

What is the testing procedure?

The same principle mentioned above is applied in the laboratory.
In the first step, known as forward typing, antibodies that attack type A and type B blood are introduced into the blood sample, and the reaction is observed. If the target blood cells group together, it means that the blood sample has reacted with the antibodies. For instance, anti-A antibodies induce agglutination (grouping or clumping) in type A blood.
The second step is called reverse typing, and is performed on the serum left behind after RBCs and WBCs are removed. Blood of a predetermined type (either A or B) is added and its behaviour in the serum is observed – and this should confirm the result of forward typing.
The Rh-factor test also follows a similar pattern. Antibodies to Rh are mixed with the blood sample, and if there is a clumping reaction, the blood is Rh-positive.

Preparation and Accessibility

No prior preparation is required for a blood group test, other than the extraction of a blood sample. Any diagnostic centre will have a laboratory equipped to perform the test on this sample, but it is always safer to consult an established and reliable organization. Apollo Diagnostics gives the assurance of accurate testing and quick, authentic results. Since a lot depends on this basic test, the earlier it is done, the better. Find your nearest Apollo Diagnostics centre here (will add hyperlink later).

Book Your Test

If you are human, leave this field blank.

Name *

Email *

Phone Number *

Test Name *

Date *

State *

City *

* T & C

You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only

Patient Testimonials

“Excellence of Apollo Diagnostics is already a recognized fact across India. Adding more strength to their reputation is their caring nature and supportive attitude. I’ll always prefer to take their services than selecting mediocre quality making any compromise with my health.”

Mr. Shahul Hameed, Chennai

“The way Apollo Diagnostics kept me at ease during the sample collection process, the way they supported me to be at my convenience and confidence is really something I’ll always remember. They were also flawless in maintaining the hygiene. Hats off to them!”

Mr. Laxmi Kantham, Hyderabad

“Awesome is probably the one word to express my views about Apollo Diagnostics. Efficiency, punctuality, compassion, sincerity…I’ll give high marks to them in all of these. Great going, Apollo!”

Shivaraj Kadam, Pune

“Thanks for the seamless service. Based on my experience I can assure that, be it quality or punctuality, Apollo Diagnostics is one name to trust and depend on.”

Mr. Thomas, Mysuru

“Excellent sense of timing! The technician arrived right on time. He was really well-trained, in terms of his skill and manner, as well. Apollo Diagnostics is doing a great job.”

Subbalakshmi, Vizag

“Appreciate the quality of service that I’ve received from Apollo Diagnostics. Their competence, caring nature, sincerity, valuing customer’s time – all these together have shaped them as the most trusted diagnostic service provider in the country.
Keep up the good work!

Mrs. Pravati Dash, Bengaluru

“My mother needed a blood test, but was unable to walk due to pain in her leg. A Phlebotomist from Apollo Diagnostics came home and collected the sample. I was informed, via SMS, that the report could be collected from any of the 3 centres in Dibrugarh, downloaded online or even delivered home for a nominal fee. Although the rates were reasonable, my mother also received a senior citizens discount too! This saved my time, money & energy. My aachhe din really seemed to have arrived! Thank you Apollo Diagnostics and hats off for displaying true professionalism.”

Mr. Alokk Kar Dowerah, Dibrugarh

“Whenever I need to have a blood sample collected from home, I ask for Vasu. He is punctual, courteous and so skilled I hardly feel any pain when he draws the sample. Plus, I truly appreciate how quickly the reports are delivered. Thanks Apollo!”

Mr. Sukumar, Film director, Sriram Nagar, Hyderabad

“Their accurate understanding of customer’s needs is one thing that set them apart and ahead of all others. As a result, it becomes easier for them to deliver the right service, that with their matchless efficiency and care to ensure less pain and easily accomplished sample collection. Apollo Diagnostics is simply doing an amazing job!”

Soundarya Abhirami, Hyderabad

“The overall service standard of Apollo Diagnostics is admirably high. The technician was punctual and well-behaved, and has the genuine skill to collect the test sample without troubling the customer. These are probably some of the major reasons for them to be the best in India.”

Mrs. Lakshmi, Chennai

“The most crucial factor with Apollo Diagnostics is that they always train their Phlebotomists so well that the team consistently remains efficient and punctual and we receive a premium quality diagnostic service. Good job. Keep it up.”

Mr. Amit Kumar Patil, Bengaluru

Service they deliver is no less than the promise they make. Be it quality, respect for customer’s time, or efficiency of their technicians…simply matchless. I confidently recommend Apollo Diagnostics to everyone.”

You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only